From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Robinson Subject: Re: Auto Rebuild on hot-plug Date: Mon, 29 Mar 2010 23:46:55 +0100 Message-ID: <4BB12DDF.4090303@anonymous.org.uk> References: <20100325113543.0e2124c5@notabene.brown> <905EDD02F158D948B186911EB64DB3D11C510278@irsmsx503.ger.corp.intel.com> <4BB0ED13.6020507@redhat.com> <4BB0F32F.9030803@anonymous.org.uk> <4BB0F820.4030707@redhat.com> <4BB12B77.8030902@anonymous.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Dan Williams Cc: Doug Ledford , "Labun, Marcin" , Neil Brown , "Hawrylewicz Czarnowski, Przemyslaw" , "Ciechanowski, Ed" , "linux-raid@vger.kernel.org" , Bill Davidsen List-Id: linux-raid.ids On 29/03/2010 23:41, Dan Williams wrote: > On Mon, Mar 29, 2010 at 3:36 PM, John Robinson > wrote: [...] >> OK, to >> some extent that's me being stupid, but at the same time I correctly hooked >> up the first 5 SATA ports to the hot-swap chassis and would want them >> considered the same group etc. > > This kind of situation is where an option-rom comes in handy i.e. the > platform firmware knows to boot from a defined raid volume. However, > it comes with quirky constraints like not supporting > 2-drive raid1. > But I see your point that it would be nice to at least have the option > auto-grow raid1 boot arrays. As it happens this was on an Intel-chipset board with ICH10-R and option ROM, and I would have used IMSM if RHEL/CentOS had supported it at the time, so I'm following IMSM support developments closely. Cheers, John.